Fin your description of thru hiking is exactly why I did the AT in sections.
The longest one was near 50 days and 700 miles. After that it was clear to me that a thru was possible physically, but the emotional part is harder than the physical. Many things going on in our lives do not stop happening because we are away from home.
I like about 30 days as a section, it lets you get fully into the hike and logistics of re-supply, and gather a "trail family" but does not go on so long that it becomes a burden.
Doing sections also allows you to see other trails when friends are going there during the year.
Hope to see you at TD and possibly Adam and Jenny also
Life's A Journey
It's not to arrive safely at the grave in a well preserved body,
But rather to skid in sideways, totally worn out, shouting,
Woo Hoo!....What a Ride!